Elderberry syrup (latin name: Sambucus nigra) is a potent antiviral and antioxidant. The bioflavonoids and other proteins in the berry prevent the ability of the cold and flu virus to infect the cell. Elderberries have been proven in double-blind, randomized, placebo-controlled trials to boost the immune system and significantly shorten the duration and severity of cold and flu symptoms. Summarizing 3 studies, the active ingredient in the Sambucus species, Sambucol, was shown effective in vitro against 10 strains of influenza including influenza A, B, and H1N1, it reduced flu symptoms by 3-4 days, a complete cure was achieved in 90% of patients in one study, compared to 6 days in the placebo group, and no adverse reactions reported in any of the studies. A recent study has shown that “elderberry inhibits H1N1 host cell infection, with an efficacy that compares favorably to Oseltamivir (TamiFlu) and Amantadine.” Sambucus works by boosting the inflammatory cytokine production so the body can attack the virus. The general dosage used was approximately 1 tsp 4 times daily. Elderberry syrup is safe for pregnant women and children. The syrup should be taken within 48 hours of symptom onset and continued for 5 days or until symptoms resolve.